Stand · Find your defenders

Who’s defending Stillwater Mine Expansion?

National forest in Montana, managed by the U.S. Forest Service.

The defenders

Nobody has claimed this fight yet

No group in our directory carries Stillwater Mine Expansion in its work yet. That is not the same as nobody fighting: if you know the group that belongs here, tell us and our editors will look at it.

18 more work nearby but are not tied to Stillwater Mine Expansion on the record

The situation

What’s happening to Stillwater Mine Expansion

The Stillwater Mine on the Custer Gallatin National Forest, at the foot of the Beartooth Mountains, is the only primary source of palladium and platinum in the United States. Sibanye-Stillwater has proposed Amendment 14 to its plan of operations, expanding surface disturbance for waste rock and tailings storage as the current facility nears capacity. The Forest Service and Montana DEQ are preparing an environmental impact statement, with a public comment period on the scope open through July 15, 2026. New tailings capacity in the Stillwater River valley raises long-term water quality and reclamation concerns beneath the Absaroka-Beartooth Wilderness.

  1. 2026Forest Service publishes notice of intent to prepare an EIS
  2. 2026Scoping comment period closes
Amendment 14 would expand mine waste storage

Source: Federal Register · June 15, 2026

No public comment window is open on Stillwater Mine Expansion right now. A call script is ready on the Public Lands Action Network, and the groups above are how the fight gets funded and argued in the meantime.

Your move

How to stand for Stillwater Mine Expansion

Build my lineup around Stillwater Mine Expansion: the leading group here opens it, and the other seats fill from this record.

Stillwater Mine Expansion has defenders. It needs more.

The work is theirs. The backing is yours.

Sources and methodThe situation, timeline, and threats: the MTJP threatened-lands record for Stillwater Mine Expansion, with per-item sources. Which groups are on the record for this place: MTJP editors tie a group to a fight only with a source link they have read, one link at a time. A group without one is shown as likely to care, a guess from the federal court record and the group’s own mission and footprint. Org-reported figures are always labeled. Data verified as of 2026-09-28. Nothing on this page is pay-to-play.